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authorJulian Wiedmann <jwi@linux.ibm.com>2018-07-11 17:42:44 +0200
committerDavid S. Miller <davem@davemloft.net>2018-07-13 01:42:39 +0200
commit371a1e7a07a0d1bb272f69ccb3df617f8a049d07 (patch)
tree589ce02e3b9d9045061c1193083317dab4792d9f /drivers/s390
parents390/qeth: clean up exported symbols (diff)
downloadlinux-371a1e7a07a0d1bb272f69ccb3df617f8a049d07.tar.xz
linux-371a1e7a07a0d1bb272f69ccb3df617f8a049d07.zip
s390/qeth: increase GSO max size for eligible L3 devices
When a L3 device doesn't offer TSO, allow the stack to build full-size GSO skbs. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/net/qeth_l3_main.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index 7b4de46bf6e3..d07803df460b 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -2536,8 +2536,9 @@ static int qeth_l3_setup_netdev(struct qeth_card *card)
NETIF_F_HW_VLAN_CTAG_RX |
NETIF_F_HW_VLAN_CTAG_FILTER;
netif_keep_dst(card->dev);
- netif_set_gso_max_size(card->dev, (QETH_MAX_BUFFER_ELEMENTS(card) - 1) *
- PAGE_SIZE);
+ if (card->dev->hw_features & NETIF_F_TSO)
+ netif_set_gso_max_size(card->dev,
+ PAGE_SIZE * (QETH_MAX_BUFFER_ELEMENTS(card) - 1));
SET_NETDEV_DEV(card->dev, &card->gdev->dev);
netif_napi_add(card->dev, &card->napi, qeth_poll, QETH_NAPI_WEIGHT);